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figure describes the block diagram of a generalized m-ary qam modulator basically the modulator includes a mapper that
the signal vectors s1nbspand s2nbspare used to represent binary symbols 1 and 0 respectively in a binary fsk system
1 set up a block diagram for the generation of sundes fsk signal st with continuous phase by using the representation
1 summarize the similarities and differences between the standard msk and gaussian filtered msk signals summarize the
binary data are transmitted over a microwave link at the rate of 106nbspbitss and the power spectral density of the
the values of ebn0 required to realize an average probability of symbol error pe 10-4nbspfor binary psk and binary fsk
demonstrate the equivalence of the two complex representations given in 7276 and 7277 which pertain to the likelihood
a set of 2m biorthogonal signals is obtained from a set of m ordinary orthogonal signals by augmenting it with the
consider the optimum detection of the sinusoidal signal in awgna determine the correlator output assuming a noiseless
in the manchester code discussed in chapter binary symbol 1 is represented by the doublet pulse st shown in figure and
a the two signal constellations shown in figure exhibit the same average probability of symbol error justify the
simplex transorthogonal signals are equally likely highly-correlated signals with the most negative correlation that
a given the input binary sequence 1100100010 sketch the waveforms of the in-phase and quadrature components of a
a dpcm system uses a linear predictor with a single tap the normalized autocorrelation function of the input signal for
consider a test signal mt defined by a hyperbolic tangent functionmt a tanhbetatwhere a and b are constants determine
consider a low-pass signal with a bandwidth of 3 khz a linear dm system with step size d 01v is used to process this
in this problem we use computer simulation to compare the performance of a companded pcm system using the -law against
in this problem revisit example which deals with coded binary antipodal signaling over an additive white gaussian noise
in natural sampling an analog signal gt is multiplied by a periodic train of rectangular pulses ct each of unit area
in this problem we evaluate the equalization needed for the aperture effect in a pam systemthe operating frequency f
twenty-four voice signals are sampled uniformly and then time-division multiplexed tdm the sampling operation uses
consider a chain of n - 1 regenerative repeaters with a total of n sequential decisions made on a binary pcm wave
repeat of problem but discuss the basic issues involved in the design of a regenerative repeater for
figure shows a huffman tree what is the codeword for each of the symbols a b c d e f and g represented by this huffman
a computer executes four instructions that are designated by the codewords 00 01 10 11assuming that the instructions